Home > All categories> Electronic Chemicals> Electronic Chemicals for Integrated Circuits> High Purity Reagents> Hydrogen gas

Hydrogen gas

Get Latest Price >

FOB Price contact us for price

Origin: China

Cas No: 1333-74-0

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

Vendor:

Payment Terms:

Inquiry now

* Send an Inquiry to us

Add to wishlist

* Name your price
* Start order doesn't mean buying now

Products Specification
Product Description

Property

CAS No.: 1333-74-0 Formula: H2 Molecular Weight: 2.01588

Description

Liquid hydrogen (LH2 or LH2) is the liquid state of the element hydrogen. Hydrogen is found naturally in the molecular H2 form.
To exist as a liquid, H2 must be cooled below hydrogen's critical point of 33K. However, for hydrogen to be in a fully liquid state without boiling at atmospheric pressure, it needs to be cooled to 20.28K (−423.17°F/−252.87°C). One common method of obtaining liquid hydrogen involves a compressor resembling a jet engine in both appearance and principle. Liquid hydrogen is typically used as a concentrated form of hydrogen storage. As in any gas, storing it as liquid takes less space than storing it as a gas at normal temperature and pressure. However, the liquid density is very low compared to other common fuels. Once liquefied, it can be maintained as a liquid in pressurized and thermally insulated containers.
Liquid hydrogen consists of 99.79% parahydrogen, 0.21% orthohydrogen.

Basic Info

Chemical Name	Hydrogen gas
Synonyms	Dihydrogen; Hydrogen; Liquid hydrogen(cryogenic liquid);
CAS No.	1333-74-0
Molecular Formula	H2
Molecular Weight	2.01588
PSA	0.00000
LogP	0.00000

Properties

Appearance & Physical State	Colorless and odorless gas
Density	0.0899
Boiling Point	-253ºC
Melting Point	-259ºC
Refractive Index	1.98
Water Solubility	0.00017 g/100 mL
Stability	Stable. Highly flammable. Readily forms explosive mixtures with air. Upper (U.K.) composition limit for use of a nitrogen/hydrogen mixture in the open lab is 5.7% hydrogen.
Storage Condition	Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Vapor Density	0.07 (21 °C, vs air)

Safety Info

RTECS	MW8900000
Hazard Class	2.1
Safety Statements	S9-S16-S33
WGK Germany	-
RIDADR	UN 1049/1966/2034/2600
Risk Statements	R12
Hazard Codes	F+
Caution Statement	P210; P377; P381; P410 + P403
Symbol	GHS02, GHS04
Signal Word	Danger
Hazard Declaration	H220; H280

Synthesis Route

hydrogen chloride+borane→Hydrogen gas+chloroboron
Methane, ion(2+)→3,3-Dimethylpentane+2,2-Dimethylhexane
hydrogen chloride+2-(l4-boraneyl)-6,7-dimethoxy-1-methyl-3,4-dihydroisoquinolin-2-ium→1-Methyl-6,7-dimethoxy-3,4-dihydroisoquinoline+Hydrogen gas

Downstream Product

2,4,6-TRIFLUOROPYRIDINE
dinitrogen
2,3,6-Trifluoropyridine
2,3,4,6-TETRAFLUOROPYRIDINE

Hot tags: hydrogen gas, China, manufacturers, suppliers, factory, wholesale, low price, high quality